Cantilever umbrella base



FIG. 1 is an upper perspective view of a section of a cantilever umbrella base;

FIG. 2 is lower perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left view thereof;

FIG. 6 is a right view thereof;

FIG. 7 is a front view thereof; and,

FIG. 8 is a back view thereof. 

CLAIM We claim the ornamental design for a cantilever umbrella base, as shown and described. 